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Chapter 1
Multiple Choice
Multiple Choice
This activity contains 14 questions.
The unit for frequency is the
hertz
ampere
watt
second
Scientific notation is a method
of expressing a very large number
of expressing a very small number
used to make calculations with large and small numbers
All of the above
The number 14.8 can also be expressed as
1.48 × 10
–1
1.48 × 10
0
1.48 × 10
1
1.48 × 10
2
Adding 27.5 × 10
3
to 8.9 × 10
4
equals
36.4 × 10
7
116.5 × 10
4
28.39 × 10
3
11.65 × 10
4
Dividing 24 × 10
11
by 3 × 10
4
equals
8 × 10
4
8 × 10
7
8 × 10
11
8 × 10
15
Which of the following is expressed in engineering notation?
470 × 10
5
82 × 10
-2
9.1 × 10
–6
14.7 × 10
8
Which of the following metric prefixes could replace 10
–9
?
Nano
Mega
Kilo
Micro
7200 mV is the same as
7.2
V
7.2 V
7,200,000 V
0.0072
V
The difference between scientific and engineering notation is
powers of ten representation
single vs. multiple digits before decimal point
groupings of multiples of three digits
All of the above
Pico is what relation to micro?
one-tenth
one-hundredth
one-thousandth
one-millionth
Add 21 mA and 8000
A and express the result in milliamperes.
21.8 mA
218 mA
29 mA
290 mA
A measure of the repeatability of a measurement of some quantity is
error
precision
accuracy
significant
The digits in a measured number that are known to be correct are called
accuracy digits
significant digits
error digits
precision digits
If you drop a 5 when rounding a number, you are using the
round-to-even rule
significant digit rule
round-off rule
retained digit rule
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